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ETSI TS 123 468
M00003423
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ETSI TS 123 468 LTE; Group Communication System Enablers for LTE (GCSE_LTE); Stage 2 (3GPP TS 23.468 version 12.6.0 Release 12)
standard by European Telecommunications Standards Institute, 10/01/2015
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Full Description
ETSI TS 123 468 provides the stage 2 description for the 3GPP system provided enablers to support groupcommunication services using EUTRAN access. The corresponding stage 1 requirements are defined in TS 22.468 [2].The group communication system is represented by an Application Server (GCS AS) using the 3GPP system providedenablers for transferring its application signalling and for delivering application data, e.g. media data, to a group of UEseither (i) over MBMS Bearer Services using the Broadcast Mode of MBMS (TS 23.246 [3]); or (ii) over EPS Bearers;or (iii) over both MBMS and EPS bearer services.
The specification covers both roaming and non-roaming scenarios and also includes support for service continuity, i.e.support for continuous reception of application data when a UE changes between reception of application data via EPSand MBMS Bearer Services.
Application level interactions between the UE and the GCS Application Server are out of scope of this specification.